Date: Wed, 4 Jun 2003 07:29:31 +0000 From: Nicolas Souchu <nsouch@free.fr> To: "David P. Reese Jr." <daver@gomerbud.com> Cc: current@freebsd.org Subject: Re: viapropm doesnt like sys/dev/pci.c rev 1.214 Message-ID: <20030604072931.E33869@armor.free.fr> In-Reply-To: <20030603175430.GA4039@tombstone.localnet.gomerbud.com>; from daver@gomerbud.com on Tue, Jun 03, 2003 at 10:54:30AM -0700 References: <20030602222009.A16160@armor.free.fr> <XFMail.20030603015436.conrads@cox.net> <20030603175430.GA4039@tombstone.localnet.gomerbud.com>
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On Tue, Jun 03, 2003 at 10:54:30AM -0700, David P. Reese Jr. wrote: [...] > : The datasheet states that the command bits are RW but "fixed at 0". > > A snip of code from sys/dev/pci/pci.c:pci_enable_io_method(): > > pci_set_command_bit(dev, child, bit); > command = PCI_READ_CONFIG(dev, child, PCIR_COMMAND, 2); > if (command & bit) > return (0); > device_printf(child, "failed to enable %s mapping!\n", error); > return (ENXIO); > > Because the viapropm's command register bits will always read as zero, > this code will always fail when trying to enable port mapping. > > Whatever problems viapropm may have, it is the new pci code that prevents it > from attaching. It is not the fault of anything in sys/pci/viapm.c. And I personally don't know how to fix it except by an option with an ifdef to workaround it. -- Nicholas Souchu - nsouch@free.fr - nsouch@FreeBSD.org
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